Results 251 to 260 of about 46,695 (300)

An Improved EMD Analysis Method for GPR Images

2011 International Conference on Computational and Information Sciences, 2011
The EMD method can be adopted to analyze the GPR echo image because it is adaptive for non-stationary and non-linear signals. However, the direct wave in GPR signal contains considerable energy which will generate false object, even aggravate the end effect.
Lu Gan, Long Zhou, Xinge You
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An Efficient Sampling Method for Cross-Borehole GPR Imaging

IEEE Geoscience and Remote Sensing Letters, 2018
This letter reformulates the recently proposed qualitative imaging technique, which is the near-field orthogonality sampling method (NOSM), for 2-D cross-borehole ground penetrating radar (GPR) applications. The NOSM employs the reduced scattered electric field as its indicator function. To derive a relationship between the scattered electric field and
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An analysis of the multi-fold method for GPR exploration

Applied Geophysics, 2006
Multi-fold technology is widely applied in seismic exploration as a method of enhancing useful signals and suppressing noise interference to greatly increase the signal to noise ratio (S/N). The authors introduce it to ground-penetrating radar (GPR) surveys and compare the experimental results to the conventional profiling method to demonstrate the ...
Wang Bangbing, Tian Gang, Sun Bo, Guo Jinxue, Zhang Xiangpei   +4 more
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Investigation of GPR Configurations by Ray-Tracing Methods

2006 IEEE Conference on Radar, 2006
Methods for locating and identifying buried assets are one focus of a large research project entitled 'mapping the underworld'. As of part of the project we are studying novel configurations for ground penetrating radar (GPR). There are two of important specifications for the GPR configurations: the bandwidth and the dynamic range.
Q. Shan, S.R. Pennock, M.A. Redfern
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Investigation of ice jams using the GPR method

2018 17th International Conference on Ground Penetrating Radar (GPR), 2018
The most effective way to remove ice jams is the explosive method, the use of which is most appropriate during the ice jam formation period. But it is necessary to know the thickness and volume of the jam-making ice in order to put the optimum quantity of explosive for effective destruction of the ice jam.
M.P. Fedorov, L.L. Fedorova, D.V. Savvin, T.P. Prudetskaya, A.V. Omelyanenko   +4 more
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GPR modelling by the Fourier method: improvement of the algorithm

Geophysical Prospecting, 1999
We improve two aspects of the modelling scheme for the simulation of electromagnetic radio waves, based on the Fourier pseudospectral method.When there are large contrasts in the material properties, use of the standard algorithm (regular grid) causes a series of artefacts, as, for instance, ringing and acausal events.
null Carcione, null Lenzi, null Valle
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GPR Acquisition Methods Comparison

2023 16th International Conference on Advanced Technologies, Systems and Services in Telecommunications (TELSIKS), 2023
Dušan Gleich, Marko Vovk, Primož Smogavec, Venceslav Kafedziski, Nebojša Dončov   +4 more
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Background removal methods in GPR prospecting

2013
In GPR prospecting strong reflections due to background medium interfaces can hinder the detection of localized buried scatterers. In order to mitigate such clutter, some background removal (clutter rejection) methods can be employed. In this paper, different background removal methods such as a the average trace subtraction, the subspace projection ...
Solimene R, Cuccaro A, Dell'Aversano A, Catapano I, Soldovieri F   +4 more
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Symmetry filtering method for GPR clutter reduction

2008 International Conference on Microwave and Millimeter Wave Technology, 2008
The clutter reduction is one of the most important problems in the ground penetrating radar (GPR) applications. The detection performance of GPR is heavily limited by clutters. In this paper, a novel and simple clutter reduction method based on the design of a symmetry filter, which is adapted to B-scan, is presented. Compared with average subtraction,
null Li Ting-jun, null Kong Ling-jiang, null Zhou Zheng-ou   +2 more
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GPR Method for Determining the Electrical Properties of Soils

Proceedings, 2012
The paper studies the possibility of quantitative processing the GPR data obtained in a laboratory, and determining the dielectric permittivity and conductivity of a medium. Experimental studies are made using radargrams of soil samples with specified values of moisture and conductivity. The methods of quantitative processing of radargrams are proposed
Z.B. Khakiev, A.V. Morozov, V.L. Shapovalov, V.A. Yavna   +3 more
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